采用Sn-Pb-Bi低熔点合金模拟钢液对高频电磁场作用下中间切缝圆坯连铸结晶器内的弯月面行为进行研究,从弯月面形状、高度和三相点位置等方面入手分析,讨论了电源功率、感应线圈位置和磁场频率对弯月面行为的影响,并以钢液为试验材料进行模型试验,验证了采用Sn-Pb-Bi低熔点合金进行研究的可靠性.结果表明,电功率对弯月面行为影响较明显;感应线圈的最佳安装位置位于结晶器切缝区域中心;在20~30kHz范围内增加磁场频率可以有效提高弯月面高度,但当磁场频率超过30kHz后,弯月面高度增加幅度不明显;在相似的试验条件下,钢液弯月面轮廓线接近于合金熔液的弯月面,这表明采用Sn-Pb-Bi低熔点合金熔液可以准确地模拟钢液的弯月面行为.
参考文献
[1] | Takeuchi E;Brimacombe J K .The Formation of Oscillation Marks in the Continuous Casting of Steel Slabs[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1984,15(03):493. |
[2] | JOYDEEP SENGUPTA;BRIAN G. THOMAS;HO-JUNG SHIN .A New Mechanism of Hook Formation during Continuous Casting of Ultra-Low-Carbon Steel Slabs[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2006(5):1597-1611. |
[3] | Vivès C .Electromagnetic Refining Of Aluminum Alloys by the CREM Process:Part Ⅰ.Working Principle And Metallurgical Results[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1989,20(10):623. |
[4] | Nakata H;Etay J .Meniscus Shape of Molten Steel Under Alternating Magnetic Field[J].ISU International,1992,32(04):521. |
[5] | Toh T;Takeuchi E;Sakane J I.Control of Initial Solidification in Continuous Casting By Use of Electromagnetic Shaping Effect[A].Nagoya,ISIJ,1994:254. |
[6] | 古橋誠治;吉田腾;田中努 .高周波電磁場を利用した铜の連铸造におけゐ初期凝固制御[J].铁と钢(日本),1998,84(09):17. |
[7] | Hoyoung KIM;Joon-Pyo PARK;Heetae JEONG .Continuous Casting of Billet with High Frequency Electromagnetic Field[J].ISIJ International,2002(2):171-177. |
[8] | Joonpyo PARK;Heetae JEONG;Hoyoung KIM .Laboratory Scale Continuous Casting of Steel Billet with High Frequency Magnetic Field[J].ISIJ International,2002(4):385-391. |
[9] | Joonpyo PARK;Hoyoung KIM;Heetae JEONG .Continuous Casting of Steel Billet with High Frequency Electromagnetic Field[J].ISIJ International,2003(6):813-819. |
[10] | H. NAKATA;T. INOUE;H. MORI .Improvement of Billet Surface Quality by Ultra-high-frequency Electromagnetic Casting[J].ISIJ International,2002(3):264-272. |
[11] | 于光伟,贾光霖,王恩刚,李本文,赫冀成.方坯软接触电磁连铸结晶器内钢液弯月面行为的热模拟[J].金属学报,2000(12):1253-1257. |
[12] | Bikerman J J.Physical Surfaces[M].New York:Academic Press,Inc,1970:10. |
[13] | 张林涛,邓安元,张兴武,王恩刚,赫冀成.矩形电磁软接触连铸结晶器内弯月面行为[J].中国有色金属学报,2006(08):1405-1410. |
[14] | 邓安元,于光伟,贾光霖,赫冀成.软接触电磁结晶器内三维弯月面形状数值模拟[J].钢铁研究学报,2001(03):10-14. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%